Statement Of Cash Flows [Abstract]
| Concept |
2023-12-31 to 2024-12-28 |
As at 2024-12-28 |
2023-01-01 to 2023-12-30 |
As at 2023-12-30 |
As at 2022-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operating activities |
5,500,000
GBP
|
— |
4,400,000
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Purchase of property, plant and equipment, classified as investing activities |
100,000
GBP
|
— |
400,000
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities |
2,400,000
GBP
|
— |
1,700,000
GBP
|
— | — |
| Interest received, classified as investing activities |
400,000
GBP
|
— |
700,000
GBP
|
— | — |
| Cash flows from (used in) investing activities |
2,600,000
GBP
|
— |
17,300,000
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Repayments of borrowings, classified as financing activities |
-
GBP
|
— |
1,000,000
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities |
600,000
GBP
|
— |
800,000
GBP
|
— | — |
| Dividends paid, classified as financing activities |
2,000,000
GBP
|
— |
1,400,000
GBP
|
— | — |
| Interest paid, classified as financing activities |
-
GBP
|
— |
100,000
GBP
|
— | — |
| Cash flows from (used in) financing activities |
2,700,000
GBP
|
— |
3,400,000
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
500,000
GBP
|
— |
16,600,000
GBP
|
— | — |
| Cash and cash equivalents | — |
10,900,000
GBP
|
— |
10,700,000
GBP
|
27,000,000
GBP
|